Answer Posted / vishwas

200Kvar

why electron produce magnetic field when it is in motion?

1691

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how to ctrl motor by use of ac or dc drive.plz explain evdintly

1483

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What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.

2125

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Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

2317

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HOW TO TEST A LIGHTENING ARREST ER ?

1709

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if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

1971

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if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2127

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At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

1542

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Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?

1644

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What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?

1763

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In a single how much maximum current and watts using

1644

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How to select a contactor? How many types of contactors are available

2736

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What are the relays in ACB and VCB

1695

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What are the protections for safe running of electric generator?

1720

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how can i get the formula to find out the cable size if i know the load of main fuse protection.

1437

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